@article{Karhumaki:TCS:1979,
    title = {On commutative {DT0L} systems},
    volume = {9},
    issn = {0304-3975},
    url = {http://dx.doi.org/10.1016/0304-3975(79)90025-2},
    doi = {10.1016/0304-3975(79)90025-2},
    number = {2},
    journal = {Theoretical Computer Science},
    publisher = {Elsevier BV},
    author = {Karhumäki, Juhani},
    year = {1979},
    month = {aug},
    pages = {207--220},
    date-added = {2025-1-20 19:42:42 +0100}
}

@article{Karhumaki:TCS:1979, title = {On commutative {DT0L} systems}, volume = {9}, issn = {0304-3975}, url = {http://dx.doi.org/10.1016/0304-3975(79)90025-2}, doi = {10.1016/0304-3975(79)90025-2}, number = {2}, journal = {Theoretical Computer Science}, publisher = {Elsevier BV}, author = {Karhumäki, Juhani}, year = {1979}, month = {aug}, pages = {207--220}, date-added = {2025-1-20 19:42:42 +0100} }